User guide

Installing the IF and ground cables Chapter 5: Installation
5-36
phn-2513_004v000 (Oct 2012)
Installing the IF and ground cables
Applies to ODU deployments only.
This section describes how to install the IF cables and how to install grounding and
lightning protection.
When installing a 1+1 Hot Standby link, install and ground separate IF cables for the
Primary and Secondary ODUs.
When installing a 2+0 link, install and ground separate IF cables for the link A and link B
ODUs.
This task consists of the following procedures:
• Preparing IF cables on page 5-38.
• Fitting an N type connector to an IF cable on page 5-38.
• Connecting the ODU to the top LPU on page 5-42.
• Weatherproofing an N type connector on page 5-45.
• Hoisting the main IF cable on page 5-49.
• Installing and grounding the main IF cable on page 5-52.
• Making an IF cable ground point on page 5-54.
• Installing and grounding the IF cable at building entry on page 5-58.
To avoid damage to equipment, observe the following precautions when installing IF and
ground cables.
When installing IF and ground cables, observe the following precautions:
o Ensure that the IF and ground cable installation meets the requirements defined in
Grounding and lightning protection on page 2-7.
o To provide effective protection against lightning induced surges, install grounding
cables without drip loops and pointing down towards the ground.
o To ensure that IF connections are not damaged by water ingress, protect all
outdoor IF connectors from the weather with self-amalgamating and vinyl tape.
o Do not connect or disconnect the IF cable when the power supply is applied to the
CMU.
o Always ensure the lightning protection units are connected the correct way round
(Figure 75).